Titration of a weak base by a strong acid

$B$ $+$ $H_3O^+$ $\rightarrow$ $HB$ $+$ $H_2O$

Base:

$V_{base}=$  $mL$ $c_{base}=\;$  $\frac{mol}{L}$ $c_{acid}=$   $\frac{mol}{L}$

1) Introduce numbers like 0.45 2) Choose a volume between 5 and 25 $mL$ 3) Choose molarities beween 0,05 and 0,25 $M$